40-Gbit/s transmission over high-PMD fiber with automatic PMD compensation

We achieved 40-Gb/s transmission over high-PMD fiber (/spl sigma//sub PMD/=9.7 ps) with automatic polarization-mode dispersion (PMD) compensation. We adopted a PMD monitor using the 20-GHz intensity of the received baseband signals and feedback control of an optical PMD compensator.

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